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Re: And the trace begins... Pick-A-Dilly Pair



On Thursday, October 25, 2012 12:18:06 PM UTC-5, Steve Nickolas wrote:
> I'm trying to understand the various disassemblies and such and figure out 
> 
> how the data translates...
> 
> 
> 
> The table in HELLO.LST contains values that, in order, go into
> 
>    B7EC, B7ED, B7F0, B7F1
> 
> and the last number into a counter which is decremented.  But some of 
> 
> these values don't appear to make sense with my current understanding.
> 
> 
> 
> 1. "Sector" values that exceed 16
> 
> 2. Addresses in the ROM space, when analysis shows the ROM is never used
> 
> 
> 
> So I'm parsing the table wrong...
> 
> 
> 
> -uso.

Look at Beneath Apple DOS, pages 6-5 and 8-35.  $B7E8 is the start of the RWTS parameter list; $B7EC/ED is track/sector; $B7F0/F1 is the buffer lo/hi.